So we have to find out how much current is required for each loadAny psu won't force out the current, it is up to the load that decides how much current is needed , so your micro will be ok as long as the psu is capable of the demand.
Sometimes the leads of the multimeter may connect to the two GPIO pins of the microcontroller while workingThe main issue with high current power supplies directly connected to small components on a PCB is fusing/current limiting for electrical safety.
If you connect a 5.0 volt 3.0 amp power supply to a micro-controller designed to operate on 5.0 volts the micro-controller will only draw its rated current. Now if you connect that same 5.0 volt supply for a uC designed to run on 3.3 volts for example you can expect smoke and will destroy your uC. As to load current draw? The load will only draw its rated current as long as your supply can provide it. For example connecting a 5.0 volt 3.0 amp supply to a 5.0 volt 5.0 amp load is not going to work. Just remember to make sure your supply voltage never exceeds the load rated voltage.Will there be any damage to microcontroller's like AVR, PIC, ARM if a high current power supply is connected to it?
Suppose I have connected a 5 volt/3 amp DC power supply to the micro controller , can it damage the microcontroller?
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